Q: Is 1,217,760 a Composite Number?

Why is 1,217,760 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 1,217,760 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 59 60 80 86 96 118 120 129 160 172 177 215 236 240 258 295 344 354 430 472 480 516 590 645 688 708 860 885 944 1,032 1,180 1,290 1,376 1,416 1,720 1,770 1,888 2,064 2,360 2,537 2,580 2,832 3,440 3,540 4,128 4,720 5,074 5,160 5,664 6,880 7,080 7,611 9,440 10,148 10,320 12,685 14,160 15,222 20,296 20,640 25,370 28,320 30,444 38,055 40,592 50,740 60,888 76,110 81,184 101,480 121,776 152,220 202,960 243,552 304,440 405,920 608,880 and 1,217,760, with no remainder.

Since 1,217,760 cannot be divided by just 1 and 1,217,760, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).